rna 12 Best GoDaddy Alternatives for Domain & Web Hosting (2020) By www.isitwp.com Published On :: Fri, 01 May 2020 05:31:34 +0000 Are you looking for the best GoDaddy alternative for domain registration and web hosting? Without a doubt, Godaddy is one of the most popular names when it comes to registering domain names and hosting your business online. Over the last 22 years, GoDaddy has managed to establish a stronghold in the market. In this article, […] The post 12 Best GoDaddy Alternatives for Domain & Web Hosting (2020) appeared first on IsItWP - Free WordPress Theme Detector. Full Article Resources domain registration godaddy alternatives web hosting
rna Exploring Node.js Internals By feedproxy.google.com Published On :: Thu, 23 Apr 2020 10:30:00 +0000 Since the introduction of Node.js by Ryan Dahl at the European JSConf on 8 November 2009, it has seen wide usage across the tech industry. Companies such as Netflix, Uber, and LinkedIn give credibility to the claim that Node.js can withstand a high amount of traffic and concurrency. Armed with basic knowledge, beginner and intermediate developers of Node.js struggle with many things: “It’s just a runtime!” “It has event loops! Full Article
rna Prolific, the (Much Better) Mechnical Turk Alternative By eagereyes.org Published On :: Tue, 05 Nov 2019 07:17:08 +0000 Prolific is a crowd-sourcing platform for running studies. In contrast to the widely-used Mechanical Turk, it’s specific to studies, has a much better interface, pricing that’s fair to participants, and useful filters to find the right people for your study. Amazon's Mechanical Turk is used for many empirical studies published in the visualization literature, but […] Full Article Blog 2019
rna An alternate definition of the Parry measure. (arXiv:2005.03282v1 [math.DS]) By arxiv.org Published On :: In this paper, we give an alternate definition of the well-known Parry measure on an aperiodic subshift of finite type using correlation between the forbidden words. We use the concept of the local escape rate to obtain this definition. We also compute Perron eigenvectors corresponding to the Perron root of the associated adjacency matrix. Full Article
rna An Issue Raised in 1978 by a Then-Future Editor-in-Chief of the Journal "Order": Does the Endomorphism Poset of a Finite Connected Poset Tell Us That the Poset Is Connected?. (arXiv:2005.03255v1 [math.CO]) By arxiv.org Published On :: In 1978, Dwight Duffus---editor-in-chief of the journal "Order" from 2010 to 2018 and chair of the Mathematics Department at Emory University from 1991 to 2005---wrote that "it is not obvious that $P$ is connected and $P^P$ isomorphic to $Q^Q$ implies that $Q$ is connected," where $P$ and $Q$ are finite non-empty posets. We show that, indeed, under these hypotheses $Q$ is connected and $Pcong Q$. Full Article
rna On the Boundary Harnack Principle in Holder domains. (arXiv:2005.03079v1 [math.AP]) By arxiv.org Published On :: We investigate the Boundary Harnack Principle in H"older domains of exponent $alpha>0$ by the analytical method developed in our previous work "A short proof of Boundary Harnack Principle". Full Article
rna On the Learnability of Possibilistic Theories. (arXiv:2005.03157v1 [cs.LO]) By arxiv.org Published On :: We investigate learnability of possibilistic theories from entailments in light of Angluin's exact learning model. We consider cases in which only membership, only equivalence, and both kinds of queries can be posed by the learner. We then show that, for a large class of problems, polynomial time learnability results for classical logic can be transferred to the respective possibilistic extension. In particular, it follows from our results that the possibilistic extension of propositional Horn theories is exactly learnable in polynomial time. As polynomial time learnability in the exact model is transferable to the classical probably approximately correct model extended with membership queries, our work also establishes such results in this model. Full Article
rna A cherished resource in this moment: our region's writers, poets and journalists By www.inlander.com Published On :: Wed, 22 Apr 2020 09:25:00 -0700 Our staff of reporters and photographers at the Inlander has been working tirelessly to cover the coronavirus pandemic and all of its implications for the Inland Northwest — on jobs, schools, employment, the restaurant industry, arts organizations, hospitals and much, much more. However, we’ve also tapped into a boundless resource that is our region’s community of writers, and in recent days they’ve shared with Inlander readers an awe-inspiring series of essays and stories that has left us inspired, hopeful, heartbroken and more than a little grateful.… Full Article Comment/Columns & Letters
rna Method for preparation of aryl poly(oxalkyl) quaternary ammonium compound By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A method for preparation of an aryl poly(oxalkyl) quaternary ammonium compound is provided, said method comprising steps of: 1) reacting a phenol with a dihalopolyalkylene ether under the action of a phase transfer catalyst, to obtain an arylpoly(oxalkyl) halide; 2) reacting said arylpoly(oxalkyl) halide with an amination reagent under the action of a phase transfer catalyst, to obtain an arylpoly(oxalkyl) amine; 3) reacting said arylpoly(oxalkyl) amine with an alkylation reagent, to obtain an aryl poly(oxalkyl) quaternary ammonium compound; wherein R1 is H or a C1 to C16 alkyl group, located in the ortho, meta or para position; n is an integer of 2 to 6; R2 is H or a C1 to C16 alkyl group; R3 is H or a C1 to C16 alkyl group; R4 is a C1 to C16 alkyl group; X1 is Br or Cl; X is Cl, Br, or I. The preparation method according to the present invention requires low temperature and low pressure, the reaction time is short, and an overall yield can reach 75%. The operation is simple, the cost is low, and the product can be separated easily and have a purity of pharmaceutical grade, thereby facilitating the large-scale production. Full Article
rna Anti-microbial and anti-static surface treatment agent with quaternary ammonium salt as active ingredient and method for preventing static electricity in polymer fibers using same By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Provided are an anti-static and anti-microbial surface treatment agent including a quaternary ammonium salt compound as an active ingredient and a method of preventing a polymer fiber from developing static electricity by using the surface treatment agent. The quaternary ammonium salt compound has excellent anti-static and anti-microbial effects for the prevention or improvement of static electricity in a polymer fiber. Accordingly, the quaternary ammonium salt compound is suitable for use as a fabric softener, or an anti-static agent, and also, provides anti-microbial effects to a polymer fiber. Full Article
rna Mixture of an amine alkoxylate ester and a quaternary ammonium compound as a collector for minerals containing silicate By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The invention relates to the use of a composition of A) at least one quaternary ammonia compound comprising at least one organic radical bonded to the ammonia nitrogen atom and optionally comprising heteroatoms and having 1 to 36 carbon atoms, and B) at least one amine alkoxylate ester of formula (1) or a salt thereof, where A, B are, independently of each other, a C2- through C5-alkylene radical R1, a C8- through C24-alkyl radical or alkenyl radical R2, R3, R4 independent of each other, H, or a C8- through C24-acyl radical, with the stipulation that at least one of the radicals R2, R3 or R4 stands for a C8- through C24-acyl radical, and x, y, z, independently of each other, stand for a whole number from 0 through 50, with the stipulation that x+y+z is a whole number from 1 through 100, in quantities of 10 through 5000 g/tonne of ore as a collector in silicate floation. Full Article
rna Lubricant composition for an internal combustion engine and method for lubricating an internal combustion engine By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A lubricating oil composition for an internal combustion engine contains: a base oil including a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm2/s or less, a CCS viscosity at −35 degrees C. of 3000 mPa·s or less and a NOACK of 12 mass % or less and a component (B) of a mineral oil having a viscosity index of 120 or more; and polyisobutylene having a mass average molecular weight of 500,000 or more. A content of the composition (A) is 25 mass % or more of a total amount of a lubricating oil. Full Article
rna Lubricant composition for an internal combustion engine and method for lubricating an internal combustion engine By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A lubricating oil composition for an internal combustion engine contains a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm2/s or less, a CCS viscosity at −35 degrees C. of 3000 mPA·s or less and a NOACK of 12 mass % or less, and a component (B) of a mineral oil having a viscosity index of 120 or more. The component (A) is contained at a content of 10 mass % or more of a total amount of the composition. Full Article
rna Reduced fossil fuel in an oxidizer downstream of a biomass furnace By www.freepatentsonline.com Published On :: Tue, 03 Feb 2015 08:00:00 EST Method of extracting syngas between the zone in a furnace where oxygen-starved combustion of biomass occurs and the zone in the furnace where secondary air is added to complete combustion, conditioning and cleaning the extracted syngas, and delivering it in a metered amount to the oxidizer or upstream of the oxidizer to reduce or eliminate the need for additional fossil fuels once the oxidizer has achieved its operating temperature. The gasifier or furnace burns solid waste and produces a syngas containing relatively high levels of CO, which is extracted from the furnace, conditioned, and introduced into an RTO as a fuel source. In certain embodiments, no extraction of syngas from the furnace takes place; the furnace conditions are manipulated so that normally undesirable levels of CO and other VOC's remain in the process stream. The heat from the furnace is used as intended (e.g., to heat a dryer), the stream is conditioned, and ultimately proceeds to a downstream RTO. Since the gas stream remains rich in CO and VOC's, its fuel value in the RTO is substantially higher than otherwise would be the case. Full Article
rna Shared load-store unit to monitor network activity and external memory transaction status for thread switching By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An array of a plurality of processing elements (PEs) are in a data packet-switched network interconnecting the PEs and memory to enable any of the PEs to access the memory. The network connects the PEs and their local memories to a common controller. The common controller may include a shared load/store (SLS) unit and an array control unit. A shared read may be addressed to an external device via the common controller. The SLS unit can continue activity as if a normal shared read operation has taken place, except that the transactions that have been sent externally may take more cycles to complete than the local shared reads. Hence, a number of transaction-enabled flags may not have been deactivated even though there is no more bus activity. The SLS unit can use this state to indicate to the array control unit that a thread switch may now take place. Full Article
rna Method for operating an internal combustion engine By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method for operating an internal combustion engine in which a speed-based feature of the internal combustion engine, which is correlated with an indicated mean effective pressure of the fuel, is determined during the warm-up of the internal combustion engine and an ideal fuel quantity, which is to be injected into at least one combustion chamber of the internal combustion engine during the warm-up, is ascertained therefrom. Full Article
rna Magnetic field generation device with alternative quench device By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A magnetic field generation device for a magnetic resonance tomography apparatus has a vacuum container that encloses a magnetic coil made of superconducting material, and a conduit of a pipe system is connected with the magnetic coil so as to conduct heat. The pipe system and the conduit are filled with a coolant that places the magnetic coil in a superconducting state during normal operation of the tomography system. A valve connects the pipe system to the interior of a capture container. In the event of non-normal operation, such as a quench, evaporated coolant passes through the valve into the capture container. Full Article
rna Diurnal solar event triggering mechanism By www.freepatentsonline.com Published On :: Tue, 02 Sep 2003 08:00:00 EDT A mechanism for determining whether the sun is visible at a diurnal solar event and for mechanically triggering actions based upon the sun being visible during the diurnal solar event is disclosed. The mechanisms of the invention can perform these operations without intervention or supervision for long periods of time. Certain embodiments have been applied to provide a diurnal solar event trigger based upon sidereal noon for a clock providing accurate timing for 10,000 years without intervention or supervision. Full Article
rna RNA antagonists targeting GLI2 for the treatment of leukemia By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention relates to oligomer compounds (oligomers) for the treatment and prevention of acute myeloid leukemia, which target GLI2 mRNA in a cell, leading to reduced expression of GLI2. Full Article
rna RNAi-mediated inhibition of frizzled related protein-1 for treatment of glaucoma By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT RNA interference is provided for inhibition of Frizzled Related Protein-1 mRNA expression, in particular, for treating patients having glaucoma or at risk of developing glaucoma. Full Article
rna Method of processing data to enable external storage thereof with minimized risk of information leakage By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method is provided to process data so that the data can be externally stored with minimized risk of information leakage. A framework (virtual execution framework) based on virtual machines (VMs) is utilized as a substitute for a trusted institution. Encryption of consolidated data can reduce risk of information leakage and enhance security. Since the virtual execution framework can control connection and direction of communication, financial institutions are allowed to apply encryption to data on their own, which makes the data further appropriate for external storage. By allowing financial institutions to apply their own decryption, it is possible to prevent one of two financial institutions from retrieving externally stored data into the external execution framework without intervention of the other. Additionally, associated acting subjects can be provided with freedom depending on the degree of information leakage risk. Full Article
rna Process for the preparation of quaternary N-alkyl morphinan alkaloid salts By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An improved process for the N-alkylation of tertiary morphinan alkaloid bases to form the corresponding quaternary morphinan alkaloid derivatives. Full Article
rna External autonomic modulation By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT In some embodiments, nerves surrounding arteries or leading to organs are targeted with energy sources to correct or modulate physiologic processes. In some embodiments, different types of energy sources are utilized singly or combined with one another. In some embodiments, bioactive agents or devices activated by the energy sources are delivered to the region of interest and the energy is enhanced by such agents. Full Article
rna External ear canal pressure regulation system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An external ear canal pressure regulation device including a fluid flow generator and an earpiece having a first axial earpiece conduit fluidicly coupled to the fluid flow generator, whereby the earpiece has a compliant earpiece external surface configured to sealably engage an external ear canal as a barrier between an external ear canal pressure and an ambient pressure. Full Article
rna Fuel/air furnace mixer By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT A heating, ventilation, and/or air conditioning (HVAC) furnace has a venturi premixer and a disturber disposed downstream relative to the premixer and in an undivided output of the venturi premixer. Full Article
rna Secondary assembly drive of an internal combustion engine and method for operating same By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A secondary assembly drive of an internal combustion engine and a method for operating same are provided. The secondary assembly drive includes: a first drive wheel (1) which can be rotatably connected to a crank shaft (CR) of the internal combustion engine, an electric machine which can be operated either as a generator (AL) of as a motor (M) and a second drive wheel (2) which can be rotatably connected to the electric machine (AL, M), an air-conditioning compressor (A/C) and a third drive wheel (3) which can be rotatably connected to the air-conditioning compressor, a traction element (4) which rotates infinitely and which wraps around the drive wheels, and an actuable clutch (7) for disconnecting the drive of the electric machine and of the air-conditioning compressor from the crankshaft when necessary. In addition, the air-conditioning compressor is designed for operation in both rotational directions, and a reversal of the rotational direction between the generator operating mode and the motor operating mode of the electric machine is provided. Full Article
rna Secondary assembly drive of an internal combustion engine and method for operating same By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A secondary assembly drive of an internal combustion engine and a method for operating same are provided. The secondary assembly drive includes, in two drive planes, an assembly drive (2) and a starter drive (12) and permits, in addition to a normal operating mode, the following operating modes: —starting of the internal combustion engine, —boosting of the internal combustion engine, —air-conditioning, and —deactivation of the assembly drive (2). Full Article
rna Mixing rotor and internal mixer By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A mixing rotor includes: a rotor shaft portion that includes a cooling passageway formed therein, and a mixing blade portion that is formed in an outer circumferential portion of the rotor shaft portion, wherein each of the long blades of the mixing blade portion includes a land portion as an end surface of the long blade facing a radially outside of the mixing rotor, a length of each of the long blades in the axis direction is set to be 0.6 times or more as large as a length of the mixing blade portion in the axis direction, a biting angle of each of the long blades is set to an angle equal to or smaller than 31°, and a center angle with respect to a land width as a width of the land portion in the cross-section of each of the long blades orthogonal to the axis direction is set to an angle equal to or larger than 7°. Full Article
rna Lubricant base oil, lubricant composition for internal combustion engine and lubricant composition for driving force transmitting device By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The lubricating base oil of the invention is characterized by satisfying at least one of the following conditions (a) or (b). (a) A saturated compound content of 95% by mass or greater, and a proportion of 0.1-10% by mass of cyclic saturated compounds among the saturated compounds.(b) The condition represented by the following formula (1). 1.435≦n20−0.002×kv100≦1.450 (1) wherein n20 represents the refractive index of the lubricating base oil at 20° C., and kv100 represents the kinematic viscosity (mm2/s) of the lubricating base oil at 100° C. Full Article
rna Toolholder assembly with internal coolant delivery system By www.freepatentsonline.com Published On :: Tue, 17 Feb 2015 08:00:00 EST A toolholder assembly includes a toolholder body having a coolant passage and a cutting insert seated within a recess of the body. The cutting insert includes an insert orifice extending between a top face and a bottom face that aligns with the coolant passage. A lock pin includes a lock pin orifice that aligns with and is in fluid communication with the coolant passage of the body. The lock pin orifice has an outlet port to allow the fluid to flow through the lock pin orifice and exit through the outlet port. A lock pin ring includes a coolant port in fluid communication with the outlet port of the lock pin to effectively discharge cooling fluid in the direction of a cutting area of the cutting insert. Full Article
rna Exhaust gas purification apparatus of an internal combustion engine By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A laminated body composed of a holding member and an inner cylinder is arranged between a heat generation element, which is electrically energized to generate heat, and a case which covers the heat generation element, and the inner cylinder has an upstream side end portion extended to a more upstream side than an upstream side end face of said heat generation element and an upstream side end face of said holding member to form an extension portion, which is formed with a protruding portion protruding to an inner side in a diametrical direction. A flow of an exhaust gas, which flows backwards after colliding with the heat generation element, will be obstructed by said protruding portion. As a result, the backflow exhaust gas stops flowing into a gap between the case and the inner cylinder. Full Article
rna Alternating-current/direct-current converter By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An alternating-current/direct-current converter includes a rectifier, a reactor, a capacitor, and a switching rectifier. The rectifier is configured to rectify alternating-current voltage output from an alternating-current power source, thereby converting the alternating-current voltage into direct-current voltage, and to output the direct-current voltage. The capacitor includes terminals. The switching rectifier is coupled to the AC power source and switchable to output the direct-current voltage to the capacitor. Full Article
rna Arc melting furnace apparatus By www.freepatentsonline.com Published On :: Tue, 18 Feb 2014 08:00:00 EST An arc melting furnace apparatus is provided which reduces an operation burden on a worker and shortens working hours. An arc melting furnace apparatus 1 includes a housing 2 having formed therein a melting chamber 2a, a hearth 4 provided within the melting chamber 2a and having a recessed portion 4a, and a heating mechanism 10 for heating and melting a metal material supplied into the recessed portion 4 to generate an alloy ingot. The apparatus comprises a turning member 23 rotatably supported on a supporting member 21 standing within the melting chamber 2a, a perimeter edge of the turning member 23 rotating and moving along the inner surface of the recessed portion 4a to lift the alloy ingot generated in the recessed portion 4a above the hearth 4 and turn it over, and a resilient turn-over assisting member 24 provided above an upper end of the recessed portion 4a. Further, the turn-over assisting member 24 is arranged to flex by a predetermined amount when the alloy ingot abuts it, and to return to its original state from the flexed state so that the alloy ingot is urged to drop into the recessed portion 4a. Full Article
rna High temperature industrial furnace roof system By www.freepatentsonline.com Published On :: Tue, 08 Apr 2014 08:00:00 EDT A high temperature industrial furnace roof system having first and second spaced apart hanger brick rows with a filler row disposed therebetween and a cable system including a plurality of electrical cables. The filler row includes a plurality of filler elements having at least one removable heating module with a heat source. The cable system operatively connects the heat source with a power source and permits the removable heating module to be removed from the respective filler element while the respective heat source remains operatively connected with the power source. Full Article
rna Sensor system for bottom electrodes of an electric arc furnace By www.freepatentsonline.com Published On :: Tue, 08 Apr 2014 08:00:00 EDT A sensor system for monitoring and controlling the performance of the bottom electrode and the deflection of an electric arc in an electric steel making furnace includes an organized matrix of anode pins interspersed with refractory material and extending toward an electrically conductive plate secured to distal ends of the anode pins. A sensing device includes two temperature sensors at spaced apart locations along each of a distributed select group of anode pins for providing corresponding electrical signals and a current sensor responsive to electrical current flowing through the anode pins of the distributed select group of anode pins for providing a corresponding electrical signal. A controller responsive to the electrical signals derived at the anode pins of the select group operates the power supply and a display for monitoring the electrical performance of the elongated anode pins for heating by the electric arc in the furnace. Full Article
rna Induction melting furnace having asymmetrical sloping bottom By www.freepatentsonline.com Published On :: Tue, 06 May 2014 08:00:00 EDT An induction melting furnace having an asymmetrical sloping bottom. The melting furnace includes: an induction coil member provided on the melting furnace so as to melt waste contained in the furnace by vitrification; a bottom unit provided in a lower part of the melting furnace, the bottom unit asymmetrically sloping downward in a direction toward a glass discharge port that is formed through the bottom unit; and a cooling member integrated with the bottom unit. Due to the asymmetrical sloping bottom of the furnace, waste in the furnace can be completely melted and can be easily discharged to the outside and, accordingly, the time and cost required to treat the waste are reduced and this improves work efficiency when treating the waste. Further, due to the insulation material, the melting furnace can be protected from electric damage that may be caused by electric arc. Full Article
rna Dental firing or press furnace By www.freepatentsonline.com Published On :: Tue, 03 Jun 2014 08:00:00 EDT The invention relates to a dental firing or press furnace (10) that enables the production of at least one dental restoration part (62). The dental firing or press furnace is provided with a firing space (12) that is heatable with the aid of a heating device (22), preferably, a resistance heating device. A heat-conducting element (50) having a specific thermal conductivity of at least 100 W/mK is arranged on the floor of the firing space (12). Full Article
rna Furnace slag door and corresponding furnace By www.freepatentsonline.com Published On :: Tue, 24 Jun 2014 08:00:00 EDT The invention relates to a furnace slag door, comprising at least one panel which is moveable, in a mounted state of the slag door, from an opened position, in which the panel is remote from a corresponding slag discharge opening within the furnace wall to a closed position, in which the panel covers at least part of said slag discharge opening. The invention further comprises a corresponding furnace equipped with such slag door. The furnace is, in particular, an electric arc furnace (EAF) but may be as well of another type. Full Article
rna Low temperature melting furnace and metal sector using an external cooling passage By www.freepatentsonline.com Published On :: Tue, 01 Jul 2014 08:00:00 EDT A low temperature melting furnace using an external cooling passage includes a wall including a plurality of metal sectors, each metal sector including a cooling passage formed along a longitudinal direction thereof, and an extension tube provided outwardly from the wall and connected to the cooling passage. Full Article
rna Roof system for electric arc furnace and method for manufacturing the same By www.freepatentsonline.com Published On :: Tue, 15 Jul 2014 08:00:00 EDT A roof system for an electric arc furnace includes a skew removably attached to the electric arc furnace, a lining of refractory material affixed to the skew, and a delta composed of a refractory material. The delta has at least one aperture capable of receiving an electrode. The delta fits onto and is supported by the refractory lining that is affixed to the skew. Full Article
rna Movable device for injecting oxygen and other materials into electric arc furnace By www.freepatentsonline.com Published On :: Tue, 29 Jul 2014 08:00:00 EDT A movable device for injecting oxygen and other technical materials into an electric arc furnace includes a housing situated above a portion of a step of a crucible and equipped with a cooling coil, an injection lance of oxygen and other technical materials, a supporting and moving system of the lance between minimum and maximum range points of the liquid bath level contained therein, positioned in the housing, an opening situated in the housing and facing the inside of the crucible in which the lance is transferably guided, and a scraping member disposed between the opening and the lance. Full Article
rna Integrated process control system for electric induction metal melting furnaces By www.freepatentsonline.com Published On :: Tue, 19 Aug 2014 08:00:00 EDT An integrated process control installation is provided for electric induction metal melting furnaces with variable furnace states. The integrated process control installation can include supporting charge delivery and slag removal installations, and furnace process operations for process control of melting metal in the furnaces. The variable furnace states, supporting installations, and furnace process operations are controlled by a supporting processing installation, while a robotic apparatus performs the furnace process operations. Full Article
rna Ladle metallurgy furnace having improved roof By www.freepatentsonline.com Published On :: Tue, 14 Oct 2014 08:00:00 EDT The present invention relates generally to a ladle metallurgy furnace having an improved roof structure. The improved roof may comprise an internal surface structure having a substantially smooth exterior surface, an external surface structure spaced apart from the internal surface structure, a plurality of channels that are defined intermediate the internal and external surface structures, a supply port in fluid communication with at least one channel through the second surface structure and in further fluid communication with a supply line, and a return port in fluid communication with at least one channel through the external surface structure and in further fluid communication with a return line. Full Article
rna Shaft high temperature continuous graphitizing furnace By www.freepatentsonline.com Published On :: Tue, 18 Nov 2014 08:00:00 EST The present invention provides a shaft high temperature continuous graphitizing furnace comprising a furnace body comprising a feeding inlet and a discharging outlet, an electrode pair, a cooling system and a discharging device; the furnace body is designed to be a shaft cylindrical structure; the electrode pair is provided within the furnace body and comprise an upper electrode and a lower electrode, the upper electrode is located below the feeding inlet, and an umbrella or cone table shape electric field having a lower cross section area greater than its upper cross section area arises between the upper electrode and eh lower electrode; and the cooling system is located between the lower electrode and the discharging outlet. For the shaft high temperature continuous graphitizing furnace of the present invention, a perpendicularly placed column electrode is used as the upper electrode, a horizontally placed circular hollow electrode is used as the lower electrode, an umbrella high temperature area is formed between the electrode pair, and the natural flow law of an object is used to have materials pass a high temperature graphitizing area and then discharged, which ensures the quality of the product. Full Article
rna Heating electrode assembly for crystal growth furnace By www.freepatentsonline.com Published On :: Tue, 18 Nov 2014 08:00:00 EST A heating electrode assembly for a crystal growth furnace includes: a heat insulation board unit that is disposed between a furnace wall and a heater, that includes a first surface facing the furnace wall and a second surface facing the heater, and that is formed with a hole extending through the first surface and the second surface; an electrode unit that includes an electricity input portion mounted to the furnace wall, a post portion disposed in the hole, and an abutment flange connecting the post portion and the heater; and an electrical insulating unit including a tubular sleeve that is disposed in the hole and that surrounds the post portion, and a pad that is clamped between the abutment flange and the second surface. Full Article
rna Furnace for dehydrating and sintering porous glass preform By www.freepatentsonline.com Published On :: Tue, 25 Nov 2014 08:00:00 EST A furnace for dehydrating and sintering a porous glass preform includes a core tube that passes through a center portion of a furnace body to accommodate therein the porous glass preform, a heater that is arranged around the core tube in the furnace body to heat the porous glass preform in the core tube, and a core tube weight dividing and bearing means that is arranged at an outer periphery of the core tube to divide and bear the weight of the core tube in its longitudinal direction. The core tube weight dividing and bearing means includes a plurality of collars that is protruded at a predetermined interval in the longitudinal direction at the outer periphery of the core tube, a first weight receiving means that supports the collars at the outer periphery of the core tube, and a second weight receiving means that bears the weight of the first weight receiving means. Full Article
rna Method to control the feed of the metal charge for electric arc furnaces By www.freepatentsonline.com Published On :: Tue, 02 Dec 2014 08:00:00 EST A method is provided to control the feed of a metal charge into an electric arc furnace having at least one electrode to generate an electric arc to melt metals. The method includes: a step of defining a “cover index CI” of the electric arc by the slag present above the liquid metal bath, in order to calculate which of the harmonics present in an electric feed quantity of the furnace are taken into consideration; a step of measuring the actual cover index CI value during a functioning cycle of the furnace; and a step of adjusting the speed of feed of the metal charge into the furnace based on the measured value of the cover index CI. Full Article
rna Electromagnetic induction melting furnace to control an average nominal diameter of the TiB2 cluster of the Al-Ti-B alloy By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT An electromagnetic induction melting furnace to control an average nominal diameter of the TiB2 cluster of the Al—Ti—B alloy includes a main body containing the melted alloy; and a multi-layer coil disposed on the main body, wherein a frequency of the alternative current of each coil of the multi-layer coil is different, and the alloy is heated by inducing a magnetic field generated by the alternative currents. The selection of the frequency and the changeable magnetic field may reduce the cohesion force between the TiB2 grains of the Al—Ti—B alloy to control the average nominal diameter of the TiB2 cluster. Full Article
rna Electromagnetic induction melting furnace to control an average nominal diameter of the TiC cluster of the Al—Ti—C alloy By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT An electromagnetic induction melting furnace to control an average nominal diameter of the TiC cluster of the Al—Ti—C alloy includes a main body containing the melted alloy; and a multi-layer coil disposed on the main body, wherein a frequency of the alternative current of each coil of the multi-layer coil is different, and the alloy is heated by inducing a magnetic field generated by the alternative currents. The selection of the frequency and the changeable magnetic field may reduce the cohesion force between the TiC grains of the Al—Ti—C alloy to control the average nominal diameter of the TiC cluster. Full Article
rna Vacuum cleaning structure for electrode furnace By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An electrode for a resistance analytical furnace has a crucible-engaging surface and an end spaced from the crucible-engaging surface having a plurality of grooves formed therein. A manifold mounted on the end of the electrode defines a dust recovery plenum and includes an outlet communicating with the plenum for coupling to a vacuum source to remove debris from the electrode. The improved electrode and electrode cleaning manifold positioned on the electrode provides a turbulent airflow for removal of dust and debris from an analytical furnace. Full Article